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CNC Mill Machinist

Flex


Job Location:

Buffalo Grove, IL - USA

Hourly Salary: USD 31 - 42
Posted: 2 September 2026 (2 days ago)
Application Deadline: 30 November 2026
Vacancies: 1 Vacancy

Job Summary

Flex is the diversified manufacturing partner of choice that helps market-leading brands design build and deliver innovative products that improve the world.

A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful inclusive and collaborative environment. If you are excited about a role but dont meet every bullet point we encourage you to apply and join us to create the extraordinary.

Job Summary

At Flex we welcome people of all backgrounds. Our employees thrive here by living our values: we support each other as we strive to find a better way we move fast with discipline and purpose and we do the right thing always.

Through a respectful inclusive and collaborative culture a career at Flex offers the opportunity to make a difference invest in your career growth and join our purpose -- to make great products that create value and improve peoples lives.

Job Summary

The CNC Mill Machinist will be based in Buffalo Grove IL and reports to the Tooling Manager. This role is responsible for setting up operating and maintaining CNC milling machines to manufacture precision components that meet engineering specifications and quality standards. The CNC Mill Machinist will interpret technical drawings perform machine adjustments conduct inspections and support continuous improvement initiatives to ensure safe efficient and high-quality production operations.

Principle Accountabilities

  • Set up operate and troubleshoot CNC milling machines to manufacture precision components according to specifications.

  • Interpret blueprints engineering drawings work instructions and GD&T requirements.

  • Select and install appropriate tooling fixtures and machine offsets for production runs.

  • Edit and make minor adjustments to CNC programs to optimize machine performance and product quality.

  • Monitor machine operations and make necessary corrections to maintain dimensional accuracy and production efficiency.

  • Perform first-piece in-process and final inspections using precision measuring instruments such as micrometers calipers height gauges and bore gauges.

  • Verify product conformance to engineering drawings customer specifications and quality requirements.

  • Record production data inspection results and machine performance information accurately.

  • Troubleshoot machining issues and collaborate with engineering and quality teams to implement corrective actions.

  • Perform routine machine maintenance and ensure equipment remains in proper operating condition.

  • Identify opportunities for process improvements that increase productivity reduce scrap and improve quality.

  • Maintain a clean organized and safe work environment in accordance with company standards.

  • Support lean manufacturing and continuous improvement initiatives.

  • Assist in training and mentoring less experienced machinists as needed.

  • Follow all safety quality environmental and regulatory requirements while performing assigned duties.

  • Operate and troubleshoot CNC milling machines while optimizing speeds feeds and machining processes.

  • Set up complex parts fixtures and tooling and perform CNC program edits as required.

  • Select install and maintain milling cutters and tooling for precision machining applications.

  • Operate multiple CNC machines simultaneously while ensuring quality and production targets are met.

  • Perform in-process and final inspections using precision measuring equipment and advanced inspection techniques.

  • Interpret blueprints technical drawings and 3D models to support machining and setup requirements.

  • knowledge of injection molds and components while utilizing computer systems to support manufacturing operations.

  • Work independently with minimal supervision perform preventive machine maintenance cross-train team members and maintain a highly organized work environment.

Qualifications

  • High school diploma or equivalent required; technical certification in Machining Technology preferred.

  • Minimum 4 years of CNC milling experience in a manufacturing environment required.

  • Experience with Haas Mazak Mori Seiki Okuma or similar CNC milling equipment.

  • Experience on Makino Yasda Roders and Mikron milling machines is preferred

  • Strong experience setting up and operating CNC vertical and horizontal milling machines.

  • Ability to read and interpret complex blueprints engineering drawings and technical specifications.

  • Proficient in the use of precision measuring equipment and inspection methods.

  • Working knowledge of GD&T (Geometric Dimensioning & Tolerancing).

  • Experience with machine offsets tooling selection speeds and feeds and basic CNC program editing.

  • Strong troubleshooting and root cause analysis skills.

  • Familiarity with lean manufacturing principles and continuous improvement methodologies.

  • Computer proficiency and ability to accurately complete production and quality documentation.

  • Strong attention to detail and commitment to producing high-quality work.

  • Ability to work independently and collaboratively in a fast-paced manufacturing environment.

  • Ability to lift up to 50 pounds and stand for extended periods while operating equipment.

What youll receive for the great work you provide:

  • Full range of medical dental and vision plans
  • Life Insurance
  • Short-term and Long-term Disability
  • Matching 401(k) Contributions
  • Vacation and Paid Sick Time
  • Tuition Reimbursement

Application Deadline:

Applications for this job position will be accepted for at least five days following the job posting start date below and continuing until the end date below or until the position is filled. This posting may close sooner due to application volume.

The base pay range for this position is provided below. The final base rate offered will be determined using job-related non-discriminatory criteria including but not limited to experience qualifications geographic location education external market data and internal equity.

$31.04 USD - $42.68 USDHourly

Job Category
Operations

Relocation:Not eligible

Is Sponsorship Available

No

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit qualifications and abilities. We do not discriminate based on: age race religion color sex national origin marital status sexual orientation gender identity veteran status disability pregnancy status or any other status protected by law. Were happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email and well discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex you must complete the application process first).